While we detest the forms of consumerism like we see in that video, it is also the system that brought us so much wealth.
Brought wealth to whom? Besides the "wealth" we can derive from pillaging the Earth's resources, everything else is a zero-sum game. When somebody gets richer, somebody else is getting poorer. Consumerism does nothing more than shuffle money around, and this movement of money is only good insofar as it provides the basis in which money CAN flow from those with more of it to those with less of it. But just because it can flow in the right direction doesn't mean that it actually does. The main problem is that those with more money do not spend nearly as much on a percentage basis as those with less.